How to deal with the sudden broadcast of weather forecast on the stereo?

Hehe, there should be broadcast interference

The audio transmission feeder of the stereo is also an antenna to some extent. In addition, high-frequency signals will be connected in series in the power grid, separated by the detection of electronic circuits, and the broadcast sound can be heard in the speaker after amplification.

Replace the feeder, increase the high-frequency filtering of the input signal, or increase the filtering at the power supply end ... all these should be analyzed in detail before deciding how to implement it.

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I hope the answer can help you.